So despite Whosthat now being locked and essentially being my private service, GITHUB received a take-down request for the repository and relayed it to me, requiring essentially a change to my service (is that github's business?!) under a threat of removing the code. I wonder how code removal would help this anonymous person's goal.

Somebody really has a vendetta against this service.

It reminds me how Frederik removed my JOSM plugin once from the OSM repository, and I was equally furious.